A recent study has provided the first side-by-side comparison of how three major COVID-19 vaccine types differ in triggering ...

Despite a U.S. factory mixup, more Johnson & Johnson doses are becoming available in the U.S., marking the only single-shot vaccine option. So how effective is it and how does it compare to the Pfizer ...

With three coronavirus vaccines already approved for emergency use authorization in the U.S., how do the different available shots compare? Pfizer and Moderna's COVID vaccines have been available in ...

LOS ANGELES -- The COVID-19 vaccines made by Pfizer and Moderna both require two doses to be administered, several weeks apart, for them to be fully effective. But there has been some scientific ...

WASHINGTON — The U.S. will likely begin distributing a third vaccine against COVID-19 in the next week, and health officials are girding for questions about which one is best. The Johnson & Johnson ...

Infectious diseases specialist says we will see a serious flu season and the vaccine is still ‘very helpful’, and also COVID ...

Pharmacies are seeing high demand for Pfizer COVID vaccine, yet many have not seen a shipment from the company in weeks, ...

Moderna is suing Pfizer and BioNTech for infringing patents central to Moderna's mRNA technology platform used to develop the COVID vaccine, the company said in a press release Friday. A widely ...